1*BOYA BY-WM5 wireless microphoneBY-WM5 lavalier microphone is for use with any DSLR GoPro HERO 3 3+ 4. The 2.4 GHz GFSK system result in strong anti-interference, good security and stability. Two-way communication, but only sound from transmitter can be recorded.1* BOYA BY-GOC ConvertorCable adapter BY-GOC is designed for GoPro Hero 3/3+/4 mini cameras with 3.5mm jack, provideing excellent audio and recording experience with stereo system.The BOYA BY-WM5 working with BY-GOC can be used for GoPro action cameras like GoPro 4/3/3+. Providing excellent recording experience for GoPro video. With a simple and lightweight cable BY-GOC, distant recording is no longer a question for GoPro holders. GoPro video can enjoy fabulous recording quality as good as that from DSLR.

Features:1.Suit for DSLR cameras, camcorders, audio recorder and GoPro HERO 3 3+ 4 etc. & portable wireless operation, such as film work, podcasting, performances and other audio or video applications.2.Adjust the volume through VOL+ and VOL- volume control.3.The low-cut filter will prevent low end noise and record conversation clearly. 4.The AAA batteries, super long 4 hours of battery life (not included);9.5 Seconds Speed Channel Set and Easy to Operate;